Hammond 195J12 10 mH 12.5 A DC Single Coil Chassis Mount Choke

The 195J12 is a heavy current, chassis mount choke from the 195 Series, a single coil inductor rated 10 mH at 12.5 A DC. It is built for engineers and integrators designing high current power supply filters, where an open core and coil inductor bolted to a chassis or panel is the practical way to smooth DC output.

The 195J12 is rated 10 mH at 12.5 A DC with 0.072 ohm resistance and Class B insulation, with a 4.12 in (105 mm) dimension A and a 6.5 lb shipping weight.

The ordering table lists dimension A at 4.12 in (105 mm), B at 3.25 in (83 mm), C at 3.44 in (87 mm), D at 3.44 in (87 mm) and E at 2.34 in (59 mm), with mounting slots (G) of 0.20 x 0.38 in (5 x 10 mm). Shipping weight is 6.5 lbs (2.95 kg). Inductance is measured at the rated D.C. current, and both inductance and resistance carry a 15% tolerance.

Mounting uses a 4-slot bracket, and connections are made to a screw terminal or heavy copper tabs with holes. The 195 Series is hipot tested at 2,500 VAC with a recommended maximum operating voltage of 600 VAC (winding to core), and is rated for operation from -40C to 85C and storage from -40C to 105C. The chokes are UL approved under Type 3AH, E207860, 30V7, and the 195J12 is listed as RoHS and REACH compliant. Class b insulation is listed in the ordering table.

For AC applications from 60 Hz to 10,000 Hz, the manufacturer points to its 197 Series instead.